Hi all,
My enlarger didn't come with a timer, I'm sick of the metronome and doing annoying logarithmic sums in my head. So I've built this timer and decided to release it as open-source for anyone else who wants to build one. It shouldn't be difficult for anyone experienced with electronics; it's mostly just a matter of wiring the right pins together on a few devices.
There is a thread on APUG with a little more discussion but I figured there might be some interest in it here too.
Please let me know if you (try to) build this so I have some idea of how many of these are out there and what level of interest there is.
Bookmarks